Exterior surface configuration of a rear spoiler of a motor vehicle



FIG. 1 is a front view of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design;

FIG. 2 is a top view of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design;

FIG. 3 is a side view from the left of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design;

FIG. 4 is a side view from the right of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design;

FIG. 5 is a perspective view from the front left of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design; and,

FIG. 6 is a perspective view from the rear right of an exterior surface configuration of a rear spoiler of a motor vehicle according to our novel design.

The dash line showing depicts environment and is not part of the claimed design. 

The ornamental design for an exterior surface configuration of a rear spoiler of a motor vehicle, as shown and described. 